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Finding the Fourth Proportional to 153,982.85, 230,900.45 and 79,064.42

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Solution

The fourth proportional to 153,982.85, 230,900.45 and 79,064.42 is: 118,558.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,982.85 : 230,900.45 = 79,064.42 : x
  2. Step 2: Convert to fraction form
    153,982.85/230,900.45 = 79,064.42/x
  3. Step 3: Cross multiply
    153,982.85x = 230,900.45 × 79,064.42
  4. Step 4: Simplify right side
    153,982.85x = 18,256,008,607.16
  5. Step 5: Solve for x
    x = 18,256,008,607.16/153,982.85
  6. Step 6: Final answer
    x = 118,558.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.